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  1. weather stationWind Update Still cross-shore at Keta Reef Oshima (light winds from the SSW at Oshima 1 km from Keta Reef Oshima). 0.7m 9 s period swell from ESE
    Keta Reef Oshima
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1 h 44 min ago

Moderate
18 km/h
SSW
Cross-Shore
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Keta Reef Oshima Surf Forecast / Izu Islands / Japan

7 Day Weather and Surf, issued 8 am Wednesday 18 Jul 2018 JST

Keta Reef Oshima surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Keta Reef Oshima sea temperature is 27.7 °C (Statistics for 18 Jul 1981-2005 - mean: 25.9 max: 27.7 min: 24.0 °C)

Wednesday 18Thursday 19Friday 20Saturday 21Sunday 22Monday 23Tuesday 24Wed
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PM
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PM
Night
AM
PM
Night
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PM
Night
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PM
Night
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PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
Swell
Height Map See all maps
Wave Height (m) & direction (?)
0.5
E
0.5
E
0.4
E
0.5
E
0.5
E
0.6
ESE
0.7
ESE
0.8
ESE
0.7
ESE
0.7
E
0.7
ESE
0.9
SE
0.6
E
0.7
SSW
0.9
SSW
0.9
SSW
1
SSW
0.9
SSW
0.9
SW
0.7
SW
0.6
SW
0.5
SW
0.5
E
Period(s) (?)910101010911101010111010111110101110101099
Surfscale.metric
Wave
Graph
(?)
Energy(?)4548284852651211231121061111027510321019520619614898734342
Wind
(km/h)
20
SW
25
SSW
20
SW
15
SW
20
SSW
20
SW
15
SSW
20
SSW
10
SW
5
SE
20
SSE
10
SSE
10
SE
15
SSE
10
SSW
10
SSE
20
S
15
SW
5
SSW
15
SSE
10
SSW
10
ESE
20
ESE
Wind State(?)cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
crosscrosscross-
on
glasscross-
off
cross-
off
cross-
off
crosscross-
on
crosscrosscross-
on
glasscross-
off
cross-
on
offcross-
off
High Tide
/ height (m)


9:05PM
1.37
8:49AM
1.22

9:41PM
1.33
10:13AM
1.11

10:20PM
1.31

12:08PM
1.06
11:08PM
1.30

1:58PM
1.10
12:06AM
1.30

3:11PM
1.18
1:07AM
1.32

3:59PM
1.26
2:02AM
1.36


Low Tide
/ height (m)

2:26PM
0.37

3:07AM
0.73
3:08PM
0.55

4:15AM
0.68
3:54PM
0.72

5:34AM
0.62
4:51PM
0.87

6:51AM
0.53

6:12PM
0.97
7:54AM
0.43

7:37PM
1.01
8:43AM
0.34

8:42PM
1.00


Note: the tide data above is for Okada (O Sima), Tokyo, Japan which is 6 km away. Surf properties and timing are calculated for Keta Reef Oshima.New forecast is published every 6 hours at www.surf-forecast.com. See detailed tide info and graph

Offshore winds at Keta Reef Oshima blow from the E.
 Wednesday 18Thursday 19Friday 20Saturday 21Sunday 22Monday 23Tuesday 24Wed
AM
PM
Night
AM
PM
Night
AM
PM
Night
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PM
Night
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PM
Night
AM
PM
Night
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PM
Night
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clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Summary
clearclearclearclearclearclearclearclearclearclearclearclearrisk thund- derclearclearclearclearclearclearclearclearclearclear
Rain (mm)
------------1----------
High °C
2828272929282828272828282829282929282929282828
Low °C
2728272829272828272828272829282829272829282828
Chill °C (?)
2828272929282828272828282829282929282929282828
Sunrise
4:41--4:43--4:43--4:43--4:45--4:45--4:46--4:47-
Sunset
-6:53--6:53--6:52--6:52--6:52--6:52--6:51--6:50
Short Range Forecast: Mostly dry. Warm air temperatures (max 29°C on Thu morning, min 27°C on Wed morning). Wind will be generally light.Long Range Forecast:Some drizzle, heaviest during Sun morning. Warm air temperatures (max 29°C on Sun afternoon, min 27°C on Sat night). Wind will be generally light.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Keta Reef Oshima surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.



Information about the Keta Reef Oshima Surf forecast

The above surf forecast table for Keta Reef Oshima provides essential information for determining whether the surfing conditions will be good over the next 7 days. A general guide to surfing at Keta Reef Oshima can be found by selecting the local surf guide option on the grey menu. Our Keta Reef Oshima surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Keta Reef Oshima) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Keta Reef Oshima may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Keta Reef Oshima is 1 km (1 miles) from the city of Oshima. If you plan a holiday in Izu Islands, look for hotels and other accommodation in Oshima. Oshima has rooms for a wide range of budgets as well as car hire and transport links.

FEATURE UPDATE: we now show red swell icons for 'open sea' swells that are travelling in an unfavourable direction for the surf break. In places, these swells may still wrap around coastlines and produce smaller waves at some breaks. They are also significant for windsurfers and other water users that tend to venture further off-shore.